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https://issues.apache.org/jira/browse/GROOVY-10127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Milles reassigned GROOVY-10127:
------------------------------------
Assignee: Eric Milles
> STC misses type check in Generic class with a bounded type parameter
> --------------------------------------------------------------------
>
> Key: GROOVY-10127
> URL: https://issues.apache.org/jira/browse/GROOVY-10127
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation, Static Type Checker
> Affects Versions: 3.0.8, 4.0.0-alpha-3
> Reporter: Stefanos Chaliasos
> Assignee: Eric Milles
> Priority: Major
>
> I have the following Groovy program.
> {code:groovy}
> public class Main {
> public static void main(String[] args) {
> new Foo<B>().foo(new B()).m()
> }
> }
> class A{}
> class B extends A{
> void m() {}
> }
> @groovy.transform.TypeChecked
> class Foo<T extends A> {
> T foo(T x) {
> x = new A(); // does not catch the error;
> }
> }
> {code}
> h2. Actual Behavior
> Runtime error.
> {code:java}
> Caught: groovy.lang.MissingMethodException: No signature of method: A.m() is
> applicable for argument types: () values: []
> Possible solutions: is(java.lang.Object), NV([Ljava.lang.Object;), any(),
> dump(), any(groovy.lang.Closure), tap(groovy.lang.Closure)
> groovy.lang.MissingMethodException: No signature of method: A.m() is
> applicable for argument types: () values: []
> Possible solutions: is(java.lang.Object), NV([Ljava.lang.Object;), any(),
> dump(), any(groovy.lang.Closure), tap(groovy.lang.Closure)
> at Main.main(Main.groovy:3)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> {code}
> h2. Expected Behavior
> groovyc should reject the program with a compile-time error.
> h2. Affected Version
> This programs have been tested with the compiler from the master (commit:
> 05a39632565bee88949c8db9d56b9f9598321fc2), 4.0.0-alpha-3, and 3.0.8.
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